Working in pairs or small groups, students use construction paper to simulate cloud cover. They estimate the percentage of cloud cover represented by torn pieces of paper on a contrasting background and assign a cloud cover classification to the...(View More) simulations created by their classmates. Students gain experience estimating cloud cover, evaluating the accuracy of estimates, and using fractions and percentages. This learning activity is from the Atmosphere chapter of the GLOBE Teacher's Guide, and is supported by the GLOBE Cloud Cover Protocol. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program.(View Less)

Students will gain an understanding of the daily movement of the sun across the sky by conducting a set of simple, quantitative observations using a sundial they have constructed. A student work sheet accompanies the learning activity.This resource...(View More) is part of the Atmosphere chapter of the GLOBE Teacher’s Guide. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program.(View Less)